Creating a harmonious energy field in a structure balancing negative and positive energies is called vastu. There should be harmony in five elements earth, water, air, fire and space.
There should be no obstruction at the entrance (pole, tree, etc.) or in lobby. Bedrooms should be in the good fortune South West Direction. The south-west corner is the best for master bed-room. The owner should use that room. Head should always point to the south or west while sleeping. North-eastern corner should not be blocked. There should be no toilet, kitchen, store or elevation in the direction.
There are some misconceptions about the science. Redoing a structure is not the remedy for good fortune. Pyramidology, Quartz Crystal and colour therapies are quite cheap and can yield good results. Colour therapy is effective in bringing harmony. Changes in colour of curtains, walls and elements like flower.